Modified Formula of Estimating Fundamental Frequency of Girder Bridge with Variable Cross-Section-Reference-Cited by-同舟云学术

Modified Formula of Estimating Fundamental Frequency of Girder Bridge with Variable Cross-Section

Published:2013-01 Issue: Volume:540 Page:99-106
ISSN:1662-9795
Container-title:Key Engineering Materials
language:
Short-container-title:KEM

Author:

Gao Qing Fei¹,Wang Zong Lin¹,Guo Bin Qiang¹

Affiliation:

1. Harbin Institute Of Technology

Abstract

Based on present research, there is a big difference between the estimation of the fundamental frequency of Girder Bridge obtained by the design code of bridge, issued by ministry of transport of the P.R. China in 2004, and the theoretical value in some cases. To overcome above issue, theoretical analysis combined with numerical simulation was applied to estimate the fundamental frequency of Girder Bridge with variable cross-section. The effect of the height ratio between mid-span cross-section and support cross-section on the fundamental frequency was discussed in detail. Finally, an improved formula was proposed to estimate the fundamental frequency of Girder Bridge, and the effectiveness of the proposed formula was verified.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.scientific.net/KEM.540.99.pdf

Reference5 articles.

1. T.J. Memory, D.P. Thambiratnam, G.H. Brameld, Free vibration analysis of bridge, Engineering Structure. 17(1995), 705-713.

2. Ministry of transport of the P.R. China, General Code for Design of Highway Bridge and Culverts, China Communication Press, Beijing, (2004).

3. A.K. Chopra, Dynamics of Structures: Theory and Applications to Earthquake Engineering, third ed., Tsinghua University Press, Beijing, (2009).

4. Bridge survey and design institute of China railway Co., Ltd., Design Guidelines for Highway Prestressed Concrete Box-girder Bridge (Trial Version), China Railway Press, Beijing, (2006).

5. Chen N.H., Statistical Regression Analysis — Introduction of Regression Equation, Science Press, Beijing, (2012).

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